This standard specifies a method of determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic. It is applicable to all leather types. The result obtained from this analysis depends on factors such as:- the degree to which the leather is ground- the extraction temperature- the extraction period- the ratio of leather to water. To obtain comparable results, it is consequently imperative that test conditions should be accurately reproduced.In all cases, any ammonium salts in the filtrate are included as part of the water-soluble matter and are then decomposed on ignition. Thus they contribute towards the result for water-so
DS/EN ISO 4098:2006 history
2006DS/EN ISO 4098:2006 Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter